In his military career, Major General Marc Overton is the Reserve Forces Advisor, the Army’s senior Reservist providing advice to the Executive Committee of the Army Board on Reserve matters. A Reservist since joining 35 Signal Regiment (V) in 1987 as a private soldier, he was commissioned in 1991.
Following a number of Regimental appointments, he became Commanding Officer of The London Regiment in 2010. During his tenure, over half the Regiment mobilised for operational duty over four Afghanistan deployments and Op OLYMPIC.
His last role was as the Assistant Chief of the Defence Staff (Reserves and Cadets), UK Defence’s senior Reservist, where he helped deliver NATO and UK Defence policy to improve the use of Reserves to increase scale, specialist skills and workforce agility.
In his civilian career he has led global technology organisations through rapid growth and change including EE, BT, Cisco, Sierra Wireless and Dassault Systemes. In 2025 he became the Managing Director of Roke, a leading UK-based technology company delivering mission-critical digital systems across Defence and National Security. He has also been the digital Non-Executive Director for Defence Equipment & Support, supporting all equipment and services for the UK Armed Forces.
A Deputy Lieutenant of Greater London and a Vice Patron of The Poppy Factory, he is the Regimental Lieutenant Colonel of the 1st Battalion London Guards, a Colonel Commandant of the Royal Corps of Signals, and Honorary Colonel of SGIS (Specialist Group Information Services). He was made a Companion of the Most Honourable Order of the Bath (CB) for services to the military in 2024.
